US3552299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary oven
Assignee: TRU BROIL CORP
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Filing: 1969-05-05
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Granted: 1971-01-05
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Expires: 1989-05-05
Abstract
Abstract Improvements in rotary oven of the general character disclosed in U.S. Pat. Nos. 2,372,362 and 2,419,261; i.e., a cylindrical oven enclosing a plurality of rotary cooking shelves, burners above some of the shelves whereby those below the burners may be used for broiling and those above the burners may be used for baking, a door accommodating access to the bake shelves, horizontally elongate door means for each broiler shelf accommodating placing of food thereon for such selective arc of rotation as to cause the same to be cooked ''''well done,'''' ''''medium'''' or ''''rare,'''' and discharge means for each broil deck spaced circumferentially from the respective door means for automatically discharging the food after its preselected arc of rotary movement in the oven; the improvements including structural refinements, a new vertically adjustable bake shelf, a water heating coil providing more complete utilization of available heat, a new crumb or waste collector and tray, more efficient and effective burners and improved speed control means for the cooking shelves.
Inventors
- 👤 Martin A Patoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:26
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/046; A21; A21B; A21B1/00; A21B1/42; A21B1/44
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
214 words
A rotary oven comprising a base, a generally cylindrical insulated enclosure on said base, a shaft extending upwardly from said base axially into said enclosure, a motor in said base for rotating said shaft, a plurality of circular broil decks mounted in vertically spaced relation on said shaft within said enclosure and each having frictional engagement with said shaft normally to be rotated thereby, a plurality of infrared burners mounted above each of said broil decks in circumferentially spaced relation to one another, a circular bake deck mounted on said shaft above the uppermost set of burners and having frictional connection with said shaft normally to be rotated thereby, another bake deck suspended from the top of said insulated enclosure including means for adjusting the vertical position of the same, a door in said enclosure communicating with said bake decks, horizontally elongate door means in said enclosure at the level of each of said broil decks, a discharge opening in said enclosure at the level of each of said door means, each discharge opening being spaced circumferentially from the respective door means in the direction of deck rotation, and a discharge bar extending from the downstream edge of each of said discharge openings to adjacent said shaft immediately above each of said broil decks.
Claim 2
Dependent Claim
214 words
A rotary oven comprising a base, a generally cylindrical insulated enclosure on said base, a shaft extending upwardly from said base axially into said enclosure, a motor in said base for rotating said shaft, a plurality of circular broil decks mounted in vertically spaced relation on said shaft within said enclosure and each having frictional engagement with said shaft normally to be rotated thereby, a plurality of infrared burners mounted above each of said broil decks in circumferentially spaced relation to one another, a circular bake deck mounted on said shaft above the uppermost set of burners and having frictional connection with said shaft normally to be rotated thereby, another bake deck suspended from the top of said insulated enclosure including means for adjusting the vertical position of the same, a door in said enclosure communicating with said bake decks, horizontally elongate door means in said enclosure at the level of each of said broil decks, a discharge opening in said enclosure at the level of each of said door means, each discharge opening being spaced circumferentially from the respective door means in the direction of deck rotation, and a discharge bar extending from the downstream edge of each of said discharge openings to adjacent said shaft immediately above each of said broil decks.
Claim 3
Dependent Claim
21 words
The oven of claim 1 including a water heating coil above said another bake deck adjacent the top of said enclosure.
Claim 4
Dependent Claim
66 words
The oven of claim 1 including a crumb deck in said base below said broil decks, a sweeper on the upper surface of said crumb deck connected to said shaft for rotation thereby, a crumb tray on the lower surface of said crumb deck communicating with an opening in said crumb deck, and a door in said base accommodating access to and removal of said tray.
Claim 5
Dependent Claim
28 words
The oven of claim 1 including a discharge shelf communicating with each of said discharge openings and radiating from said enclosure, each said shelf comprising a roller conveyor.
Claim 6
Dependent Claim
13 words
The oven of claim 1 including variable speed control means for said motor.
Claim 7
Dependent Claim
20 words
The oven of claim 1 wherein each of said horizontally elongate door means comprises a circumferentially sequential set of doors.
Claim 8
Dependent Claim
17 words
The oven of claim 6 wherein each door means comprises three contiguous doors closing a common opening.
Claim 9
Dependent Claim
68 words
In a rotary oven having a generally cylindrical insulated enclosure, a shaft extending axially into said enclosure, means for rotating said shaft, and a plurality of circular cooking decks on said shaft rotatable within the enclosure; the improvement comprising an oven shelf independent of said shaft suspended from the ceiling of said enclosure and including means exteriorly of the enclosure for adjusting its vertical position within the enclosure.
Claim 10
Dependent Claim
68 words
In a rotary oven having a generally cylindrical insulated enclosure, a shaft extending axially into said enclosure, means for rotating said shaft, and a plurality of circular cooking decks on said shaft rotatable within the enclosure; the improvement comprising an oven shelf independent of said shaft suspended from the ceiling of said enclosure and including means exteriorly of the enclosure for adjusting its vertical position within the enclosure.
Claim 11
Dependent Claim
23 words
In an oven as set forth in claim 8, means rotatably suspending said oven shelf from said ceiling for accommodating manual rotation thereof.
Claim 12
Dependent Claim
87 words
In a rotary oven having a generally cylindrical insulated enclosure, a shaft extending axially into said enclosure, means for rotating said shaft, and a plurality of circular cooking decks on said shaft rotatably within the enclosure; the improvement comprising a crumb deck below the cooking decks, an opening in said crumb deck, a cleanout tray below said opening, a sweeper on said crumb deck connected to said shaft for sweeping crumbs from the deck into said tray, and means accommodating access to and removal of said tray.
Claim 13
Dependent Claim
87 words
In a rotary oven having a generally cylindrical insulated enclosure, a shaft extending axially into said enclosure, means for rotating said shaft, and a plurality of circular cooking decks on said shaft rotatably within the enclosure; the improvement comprising a crumb deck below the cooking decks, an opening in said crumb deck, a cleanout tray below said opening, a sweeper on said crumb deck connected to said shaft for sweeping crumbs from the deck into said tray, and means accommodating access to and removal of said tray.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |